Color filter substrate

Abstract

A display has color pixels that can be controlled to show color images. Differences in electric fields in different color pixels having color filters with different dielectric constants can be compensated by providing electrodes with different patterns for the different color pixels. For example, the electrodes can have slits in which the widths of the slits can be different for pixels having different colors.

1. An apparatus comprising:
 a color filter substrate comprising: 
 a transparent substrate having a first area and a second area; 
 at least one first color filter formed on the first area; 
 at least one second color filter formed on the second area, the second color filter having a dielectric constant that is smaller than the dielectric constant of the first color filter; and 
 an electrode formed on the first area and the second area, the electrode defining at least one first slit in the first area and at least one second slit in the second area, the at least one first slit including a first slit having a width that is larger than the width of any of the second slits. 
 
     
     
       2. The apparatus of  claim 1  in which the first color filter comprises a green resist material. 
     
     
       3. The apparatus of  claim 1  in which the second color filter comprises at least one of a red resist material and a blue resist material. 
     
     
       4. The apparatus of  claim 1  in which a difference between the dielectric constants of the first color filter and the second color filter is greater than 30% of the dielectric constant of the first color filter. 
     
     
       5. The apparatus of  claim 1  in which the width of each of the first and second slits is between 6 μm and 12 μm. 
     
     
       6. The apparatus of  claim 1  in which the first slit has a length greater than 80 μm. 
     
     
       7. The apparatus of  claim 6  in which the at least one first slit includes a slit having a length that is less than 80 μm. 
     
     
       8. The apparatus of  claim 1  in which the electrode comprises finger-like structures formed at a periphery of the first slit and a periphery of the second slit. 
     
     
       9. The apparatus of  claim 1  in which a ratio between the width of the first slit to the width of the second slit is substantially equal to a ratio between the dielectric constant of the first color filter to the dielectric constant of the second color filter. 
     
     
       10. The apparatus of  claim 1 , further comprising an active component array substrate and a liquid crystal layer disposed between the color filter substrate and the active component array substrate. 
     
     
       11. The apparatus of  claim 1 , further comprising a backlight module and a liquid crystal display panel that comprises the color filter substrate. 
     
     
       12. An apparatus comprising: a display comprising:
 a first pixel having a first color filter and a first electrode, the first color filter having a first dielectric constant, the first electrode defining a first pattern having one or more openings; and 
 a second pixel having a second color filter and a second electrode, the second color filter having a second dielectric constant that is different from the first dielectric constant, the second electrode defining a second pattern having one or more openings, in which the first pattern and the second pattern are different and configured to compensate for a difference in electric fields in the first and second pixels caused by a difference in the dielectric constants of the first and second color filters. 
 
     
     
       13. The apparatus of  claim 12  in which the first pattern includes a short slit and a long slit, the second pattern also includes a short slit and a long slit, in which the long slit of the first pattern is wider than the long slit of the second pattern. 
     
     
       14. The apparatus of  claim 12  in which the first electrode is electrically coupled to the second electrode. 
     
     
       15. The apparatus of  claim 12  in which the first color filter comprises at least one of a red color filter, a green color filter, and a blue color filter. 
     
     
       16. An apparatus comprising:
 a display comprising:
 a first set of pixels each having a first color filter and a first electrode, the first color filters being of a same color and each having a first dielectric constant, the first electrodes having a same first pattern and each having one or more openings; and 
 a second set of pixels each having a second color filter and a second electrode, the second color filters being of a same color and each having a second dielectric constant that is different from the first dielectric constant, the second electrodes having a same second pattern and each having one or more openings, in which the second pattern is different from the first pattern. 
 
 
     
     
       17. An apparatus comprising:
 a color filter substrate, comprising:
 a transparent substrate defining a first area and a second area; 
 at least one first color filter formed in the first area; 
 at least one second color filter formed in the second area, the second color filter having a dielectric constant that is smaller than the dielectric constant of the first color filter; and 
 an electrode formed in the first area and the second area, the electrode defining at least one first slit in the first area, the electrode including a plurality of first connecting portions that connect portions of the electrode layer at two sides of the first slit to form a plurality of first sub-slits, 
 the electrode layer also defining at least one second slit in the second area, the electrode layer including a plurality of second connecting portions that connect portions of the electrode layer at two sides of the second slit to form a plurality of second sub-slits, in which the first sub-slits have an average length that is greater than the average length of the second sub-slits. 
 
 
     
     
       18. The apparatus of  claim 17  in which the first color filter comprises a green resist material. 
     
     
       19. The apparatus of  claim 17  in which the second color filter comprises at least one of a red resist material and a blue resist material. 
     
     
       20. The apparatus of  claim 17  in which the electrode comprises a plurality of finger-like structures formed at a periphery of the first slit and a periphery of the second slit. 
     
     
       21. The apparatus of  claim 17  in which each of the first sub-slits and the second sub-slits has a length that is greater than 20 μm. 
     
     
       22. The apparatus of  claim 17  in which each of the first connecting portions and the second connecting portions has a width that is less than or equal to 6 μm. 
     
     
       23. The apparatus of  claim 17  in which the number of the first connecting portions associated with each of the first slits is greater than the number of the second connecting portions associated with each of the second slits. 
     
     
       24. The apparatus of  claim 17 , further comprising an active component array substrate and a liquid crystal layer disposed between the color filter substrate and the active component array substrate. 
     
     
       25. The apparatus of  claim 17 , further comprising a backlight module and a liquid crystal display panel that comprises the color filter substrate. 
     
     
       26. A method comprising:
 controlling pixels of a display to show an image; and 
 compensating differences in electric fields in different pixels having color filters with different dielectric constants by providing electrodes with different patterns for the different pixels, in which providing electrodes with different patterns comprises providing at least one of (a) different pixel electrodes having different patterns and (b) different common electrodes having different patterns. 
 
     
     
       27. The method of  claim 26  in which providing electrodes with different patterns comprises providing a first electrode in a first pixel having a first color filter and a second electrode in a second pixel having a second color filter, the first electrode defining a first slit, the second electrode defining a second slit, the first slit having a width that is larger than the width of the second slit. 
     
     
       28. The method of  claim 27  in which the first color filter comprises a green filter and the second color filter comprises a red filter. 
     
     
       29. The method of  claim 26  in which providing electrodes with different patterns comprises providing a first electrode in a first pixel having a first color filter and a second electrode in a second pixel having a second color filter, the first electrode layer defining a first slit, the second electrode defining a second slit, the first electrode comprising first connecting portions that connect portions of the first electrode at two sides of the first slit to define a plurality of first sub-slits, and second electrode comprising second connecting portions that connect portions of the second electrode at two sides of the second slit to define a plurality of second sub-slits, the first sub-slits having an average length that is different from the average length of the second sub-slits.